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Alexandre B.AB

Alexandre B.

AI Fullstack Developer

€350/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexandre

Fullstack Developer | Next.js | React.js | TypeScript | Node.js | Nest.js

Do you have a SaaS, B2B, or startup web project and are looking for a developer capable of designing a performant, scalable application tailored for your users?

As a fullstack web developer specializing in React.js, Next.js, and Node.js, I will guide you from the idea to the launch: architecture, frontend and backend development, SEO optimization, and production deployment.

My Experience
👨‍💻 Over 7 years of web development experience on various projects:

SaaS Applications (CRM, internal tools, openrouter)
High-stakes startups for scalability and speed to market
Showcase websites and landing pages optimized with React.js and Next.js
Solutions for large companies with complex environments

What I Offer

Modern and responsive frontend interfaces with React.js & Next.js
Robust and secure APIs with Node.js & Nest.js
Scalable B2B SaaS applications adapted to the growth challenges of startups and SMEs

Why Work Together?

Fullstack Expertise: from frontend to backend to cloud deployment
SaaS, B2B, and Startup Experience: I understand your business and technical challenges
UX/UI Oriented Approach: intuitive and performant interfaces
Fluid Collaboration: clear communication, responsiveness, and rigorous follow-up

📞 Ready to launch your web project?
Contact me now (response within 1 hour) to schedule an initial discussion and see how I can support you from idea to deployment.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Relief
    Full Stack Engineer
    June 2026 - Today (2 months)
    Hôtel de Ville, Paris, France
    In June, I joined ReliefApp.ai to contribute to V2 of their AI-assisted quote creation tool — a short but intensive mission, at the heart of AI applied to the product. In a context where AI is not a gimmick but the core of the product, I worked autonomously on the design and implementation of multi-agent workflows, with constant attention to efficiency, architecture, and continuous product evolution.

    Stack: Next.js
    • · React.js
    ◦ · Node.js
    ◦ · NestJS
    ◦ · TypeScript
    ◦ · Tailwind CSS
    ◦ · shadcn/ui
    ◦ · Zod
    • · Claude Code
  • La Bourse aux Livres
    Back End Developer
    June 2021 - May 2025 (3 years and 11 months)
    Paris, France
    • • Task automation: cron, queue, event-driven.
    • • Internal UX: participation in creating user-friendly interfaces to facilitate the work of field teams and customer support.
  • La Bourse aux Livres
    Lead Backend Developer
    E-COMMERCE
    June 2021 - May 2025 (3 years and 11 months)
    Paris, France
    From developer to lead backend developer.
    First full-time employee at this startup, I participated feature by feature, fix by fix, in the rise of this major player in used books, La Bourse aux Livres.

    Feature design, always actively reviewing the codebase. In a team, clean and coherent code is paramount.

    Technology changes along the way, a global understanding of the system and a vision for the future to choose appropriate technologies. The life of a rising startup is rich in experiences. B2C is a demanding field.
    TypeScript Node.js Firebase Google Cloud Git

Recommendations

MR
FU
Matthieu Rocher and 1 other person have recommended Alexandre

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Education

  • Master's degree
    ETNA
    2019
    Formation d'ingénieur développeur

Skill set

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